Ukemi with street clothes is really "fun" if you make sure to leave everything in your pockets. I normally carry my keys, wallet, money (paper & coin), a pocket knife, and a cell phone (on my belt). The keys dig in quite nicely, the wallet even though soft is really uncomfortable, and I broke the cell phone carrier and scratched the face up pretty well

Bronson

"A pacifist is not really a pacifist if he is unable to make a choice between violence and non-violence. A true pacifist is able to kill or maim in the blink of an eye, but at the moment of impending destruction of the enemy he chooses non-violence."